package com.lcq.study.normal;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @ClassName MapTest
 * @Description
 * @Author lichuanqi
 * @Date 2023/9/19 10:08
 * @Version 1.0
 **/
public class MapTest {
    public static void main(String[] args) {
        Map<String, List<Integer>> map = new HashMap<>();
        map.put("a", Arrays.asList(1,2,3,4));
        map.put("b", Arrays.asList(11,22,33,44));
        map.put("c", Arrays.asList(21,22,23,24));
        map.put("d", Arrays.asList(31,32,33,34));

        System.out.println(map.size());
    }
}
